A flaw was found in the Linux kernels eBPF implementation. By default, accessing the eBPF verifier is only accessible to privileged users with CAP_SYS_ADMIN. A local user with the ability to insert eBPF instructions can abuse a flaw in eBPF to corrupt memory. The highest threat from this vulnerability is to confidentiality, integrity, as well as system availability.
Platform | Package | Release Date | Advisory |
---|---|---|---|
Amazon Linux 1 | kernel | 2021-05-20 21:12 | ALAS-2021-1503 |
Amazon Linux 2 - Core | kernel | 2021-04-20 17:55 | ALAS2-2021-1627 |
Amazon Linux 2 - Kernel-5.4 Extra | kernel | 2022-01-12 00:00 | ALAS2KERNEL-5.4-2022-003 |
Score Type | Score | Vector | |
---|---|---|---|
Amazon Linux | CVSSv3 | 7.0 | CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H |
NVD | CVSSv3 | 7.8 | CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H |
NVD | CVSSv2 | 7.2 | AV:L/AC:L/Au:N/C:C/I:C/A:C |